A lightweight neckband for the Sennheiser DW Office and D 10 series.
The neckband is to be mounted on the headset by the use of a click-on adapter.
The click-on adapter is included in the DW Office product packaging.

Note!
When used with a Sennheiser D 10 headset the click-on adapter from the HSA 20
earhook accessory set (art. no. 506524) is needed additionally.